This is a storage box with a lid that stores up to 4 trays of Micro Machines. With the standard tray (x4) it will store 112 micro machines.
Included are 2 tray designs:
The trays are identical in size so you can use any combination of trays for the storage box.
The lid simply fits on top (it isn't hinged or attached to the storage box) to keep the cars dust free.
Hope it helps you organise your Micro Machines like it does mine!
You may need to use a brim (I've tried with 5mm and it worked) to avoid lifting of the edges. On my P1S it printed okay without one with silk but needed one for another standard PLA filament.
Happy for you to add your own tray designs and adaptions, but no commercial use.